‘Groups posing as under-age girls online to expose suspected paedophiles – commonly referred to as ‘paedophile hunters’ – say they gain quicker results than police. But is their work undermining official investigations?’

‘One of the Conservative MPs who was contacted by a Sunday Mirror reporter posing as a woman interested in sex is to write to the Metropolitan police over the tabloid sting. Mark Pritchard said he would contact Scotland Yard and make a formal complaint to the Independent Press Standards Organisation (Ipso) over accusations of entrapment.’